This is a note to let you know that I've just added the patch titled
ALSA: au88x0: Fix zero clear of stream->resources
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-au88x0-fix-zero-clear-of-stream-resources.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 639db596165746ca87bbcb56559b094fd9042890 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Thu, 12 May 2016 18:04:16 +0200
Subject: ALSA: au88x0: Fix zero clear of stream->resources
From: Takashi Iwai <tiwai@xxxxxxx>
commit 639db596165746ca87bbcb56559b094fd9042890 upstream.
There are a few calls of memset() to stream->resources, but they all
are called in a wrong size, sizeof(unsigned char) * VORTEX_RESOURCE_LAST,
while this field is a u32 array. This may leave the memories not
zero-cleared.
Fix it by replacing them with a simpler sizeof(stream->resources)
instead.
Reported-by: David Binderman <dcb314@xxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/au88x0/au88x0_core.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -2146,8 +2146,7 @@ vortex_adb_allocroute(vortex_t *vortex,
stream->resources, en,
VORTEX_RESOURCE_SRC)) < 0) {
memset(stream->resources, 0,
- sizeof(unsigned char) *
- VORTEX_RESOURCE_LAST);
+ sizeof(stream->resources));
return -EBUSY;
}
if (stream->type != VORTEX_PCM_A3D) {
@@ -2157,7 +2156,7 @@ vortex_adb_allocroute(vortex_t *vortex,
VORTEX_RESOURCE_MIXIN)) < 0) {
memset(stream->resources,
0,
- sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
+ sizeof(stream->resources));
return -EBUSY;
}
}
@@ -2170,8 +2169,7 @@ vortex_adb_allocroute(vortex_t *vortex,
stream->resources, en,
VORTEX_RESOURCE_A3D)) < 0) {
memset(stream->resources, 0,
- sizeof(unsigned char) *
- VORTEX_RESOURCE_LAST);
+ sizeof(stream->resources));
pr_err( "vortex: out of A3D sources. Sorry\n");
return -EBUSY;
}
@@ -2283,8 +2281,7 @@ vortex_adb_allocroute(vortex_t *vortex,
VORTEX_RESOURCE_MIXOUT))
< 0) {
memset(stream->resources, 0,
- sizeof(unsigned char) *
- VORTEX_RESOURCE_LAST);
+ sizeof(stream->resources));
return -EBUSY;
}
if ((src[i] =
@@ -2292,8 +2289,7 @@ vortex_adb_allocroute(vortex_t *vortex,
stream->resources, en,
VORTEX_RESOURCE_SRC)) < 0) {
memset(stream->resources, 0,
- sizeof(unsigned char) *
- VORTEX_RESOURCE_LAST);
+ sizeof(stream->resources));
return -EBUSY;
}
}
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-3.18/alsa-au88x0-fix-zero-clear-of-stream-resources.patch